Benedict becomes 1st pope in 600 years to resign

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CASTEL GANDOLFO, ITALY - FEBRUARY 28: Members of the Swiss Guard prepare to close the doors to Pope Benedict XVI's residence in Castel Gandolfo and transfer responsibility for his security to the police as he starts his retirement on February 28, 2013 in Castel Gandolfo, Italy. Pope Benedict XVI has been the leader of the Catholic Church for eight years and is the first Pope to retire since 1415. He will stay at the Papal Summer residence of Castel Gandolfo until renovations are complete at a monastery in the grounds of the Vatican and will be known as Emeritus Pope. (Photo by Oli Scarff/Getty Images)